Use of in situ combined x-ray diffraction and x-ray absorption spectroscopy for the study of the thermal decomposition of zinc peroxide to zinc oxide is reported here. Comparison of data extracted from both x-ray diffraction (XRD) and x-ray absorption spectroscopy (XAS) with thermo gravimetric analysis (TGA) enabled us to follow the nature of the conversion of ZnO₂ to ZnO. A temperature range between 230 C and 350 C appears to show that a very poorly crystalline ZnO is formed prior to the formation of an ordered ZnO material. Both the decrease in white line intensity in the Zn K-edge XANES and resulting lower coordination numbers estimated from analysis of the Zn K-edge data of ZnO heated at 500 C, in comparison to bulk ZnO, suggest that the ZnO produced by this method has significant defects in the system.

本文报道了使用原位组合 x 射线衍射和 x 射线吸收光谱研究过氧化锌热分解为氧化锌。将从 x 射线衍射 (XRD) 和 x 射线吸收光谱 (XAS) 提取的数据与热重分析 (TGA) 进行比较，使我们能够跟踪 ZnO ₂转化的性质到氧化锌。230°C 和 350°C 之间的温度范围似乎表明在形成有序 ZnO 材料之前形成了非常差的结晶 ZnO。与块状 ZnO 相比，Zn K 边缘 XANES 中白线强度的降低和通过对 500 C 加热的 ZnO 的 Zn K 边缘数据的分析估计的较低配位数表明，通过这种方法生产的 ZnO系统存在重大缺陷。